Discover the unique and flavorful world of Surströmming, Sweden's famed fermented herring. This traditional dish is renowned for its potent aroma and distinctive taste. Perfect for adventurous eaters, Surströmming is a staple in Swedish cuisine that offers a truly authentic experience. Learn how to prepare this classic fermented delicacy with our step-by-step recipe guide.

Ingredients:

- 1 kg fresh herring fillets (preferably from a reliable source)

- 2 tablespoons sea salt

- 1 tablespoon sugar

- 1 tablespoon crushed bay leaves

- 1 tablespoon crushed black peppercorns

- 1 cup cold water

Instructions:

Prepare the Herring:

  - Clean the herring fillets thoroughly, removing any remaining entrails and bones. Rinse them under cold water and pat dry with paper towels.

Salt and Season:

  - In a bowl, combine the sea salt, sugar, crushed bay leaves, and crushed black peppercorns. Rub this mixture evenly onto both sides of the herring fillets.

Pack the Herring:

  - Place the salted fillets in a clean glass jar or a fermentation container. Layer them neatly, ensuring that each fillet is well-coated with the seasoning mixture.

Add Water:

  - Pour the cold water over the herring fillets, ensuring they are fully submerged. You may need to use a weight or plate to keep the fillets under the brine.

Fermentation:

  - Seal the jar or container tightly and leave it at room temperature (around 18-22°C) for about 2-4 weeks. During this time, the herring will ferment, developing its characteristic strong aroma and flavor.

Check and Store:

  - After the fermentation period, check the herring for taste. If it meets your preference, transfer the jar to the refrigerator to slow down the fermentation process. Surströmming can be kept refrigerated for several months.

Serve:

  - Serve Surströmming with traditional accompaniments such as flatbread, boiled potatoes, sour cream, and red onions. Enjoy the bold and distinctive flavors of this Swedish delicacy!

Note: Fermented herring has a very strong smell. It's best enjoyed in well-ventilated spaces and shared with fellow enthusiasts who appreciate its unique taste.

Nutritional values

Fresh Herring Fillets (1 kg)

 - Calories: 237 kcal

 - Protein: 25g

 - Fat: 14g

 - Carbohydrates: 0g

 - Omega-3 fatty acids: 2.2g

Benefits:

 - High in protein, which supports muscle maintenance and repair.

 - Rich in omega-3 fatty acids, promoting heart health and reducing inflammation.

 - Contains vitamins D and B12, which support bone health and red blood cell formation.

Sea Salt (2 tablespoons)

 - Sodium: 2,325mg

Benefits:

 - Essential for fluid balance and nerve function.

 - Provides flavor and is used in preserving fish.

 - Note: Excessive sodium intake can lead to health issues, so use in moderation.

Sugar (1 tablespoon)

 - Calories: 49 kcal

 - Carbohydrates: 13g

Benefits:

 - Adds sweetness and balances flavors.

 - Provides a quick source of energy. 

 - Use in moderation to avoid excess calorie and sugar intake.

Crushed Bay Leaves (1 tablespoon)

 - Calories: 6 kcal

 - Carbohydrates: 1.5g

 - Protein: 0.1g

 - Fat: 0g

Benefits:

 - Adds aromatic flavor to dishes.

 - Contains antioxidants and can aid digestion.

 - Helps in enhancing the overall taste of the dish.

Crushed Black Peppercorns (1 tablespoon)

 - Calories: 6 kcal

 - Carbohydrates: 1.5g

 - Protein: 0.2g

 - Fat: 0.1g

Benefits:

 - Contains piperine, which may enhance nutrient absorption.

 - Adds a spicy kick and has potential digestive benefits.

 - Provides antioxidants and supports metabolism.

Cold Water (1 cup)

 - Calories: 0 kcal

Benefits:

 - Essential for hydration and various bodily functions.

 - Acts as a medium for dissolving other ingredients and helps in the pickling process.

These ingredients come together to prepare a flavorful pickling solution for herring fillets, combining the benefits of protein from the fish with the aromatic and preservative qualities of the spices and salt.